Luminescence of Rare Earth Metalorganic Complexes in Sol-Gel Derived Host Materials

1992 ◽  
Vol 286 ◽  
Author(s):  
Lowell R. Matthews ◽  
E. T. Knobbe
Keyword(s):  
Rare Earth ◽  
Dopant Concentration ◽  
Sol Gel ◽  
Inorganic Salts ◽  
Optical Source ◽  
Matrix Interaction ◽  
Host Materials ◽  
Sol Gel Process ◽  
Intense Emission ◽  
Luminescence Behavior

ABSTRACTThe narrow, intense emission bands of europium(III) make its compounds of interest for various optical source applications. Previous studies have shown that europium thenoyltrifluoroacetonate complexes, e.g. Eu(TTFA)3, have superior fluorescence properties in select media with respect to inorganic salts like EuCl3. It has been shown that such complexes may be incorporated into solid-state matrices via the sol-gel process. The present research examines the luminescence behavior of a metalorganic complex (Eu(TTFA)3) doped into a sol-gel derived silica-acrylate ORMOSIL host and extends our earlier work on doped silica gel materials. The present study focuses on the effects of dopant concentration and dopant-matrix interaction, and seeks to compare the behavior of Eu(ITFA)3 in silica and ORMOSIL gel host materials.

Structure and optical properties of rare earth doped Y2O3 waveguide films derived by sol–gel process

2004 ◽  
Vol 458 (1-2) ◽  
pp. 274-280 ◽  
Author(s):  
H. Guo ◽  
W. Zhang ◽  
L. Lou ◽  
A. Brioude ◽  
J. Mugnier
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Rare Earth Doped

Preparation, Characterization and its Photocatalytic Performance of Rare Earth Element Erbium Doped with TiO2 Material

2012 ◽  
Vol 568 ◽  
pp. 380-383
Author(s):  
Song Tian Li ◽  
Guo Xu He ◽  
Wei Ma ◽  
Yan Hua Liu
Keyword(s):  
Titanium Dioxide ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Visible Region ◽  
Erbium Doped ◽  
Sol Gel Process ◽  
Reduce Energy Consumption

In order to expand photoresponse range of TiO2, reduce energy consumption of semiconductor material optical catalytic, certain amount of rare earth element Erbiun was doped during preparation of anatase titanium dioxide to improve the light absorption and photocatalysis efficiency. A series of rare earth element doped TiO2 material were prepared by sol-gel process, and characterized by means of UV-vis diffuse reflectance spectra. UV-vis absorption verified that doping of Er3+ enhanced absorptive capacity of catalyst in visible region. The photocatalytic performance of anatase titanium dioxide and rare earth element Erbiun doped with TiO2 to basic fuchsin were studied.

Luminescence behavior of europium complexes in sol-gel derived host materials

1993 ◽  
Vol 5 (12) ◽  
pp. 1697-1700 ◽  
Author(s):  
Lowell Matthews ◽  
Edward T. Knobbe
Keyword(s):  
Sol Gel ◽  
Europium Complexes ◽  
Host Materials ◽  
Luminescence Behavior

Synthesis of Yttria Nanopowders Doped with Rare Earth via a Coconut Water-Based Sol-Gel Process

2004 ◽  
Vol 20-21 ◽  
pp. 247-252 ◽  
Author(s):  
Paulo J.R. Montes ◽  
Marcelo A. Macêdo ◽  
Frederico G.C. Cunha ◽  
Zélia S. Macedo ◽  
Mário Ernesto G. Valerio
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Coconut Water ◽  
Sol Gel Process ◽  
Water Based

Luminescent properties of rare-earth-doped CaWO4phosphor films prepared by the Pechini sol–gel process

2003 ◽  
Vol 15 (29) ◽  
pp. 5157-5169 ◽  
Author(s):  
M L Pang ◽  
J Lin ◽  
S B Wang ◽  
M Yu ◽  
Y H Zhou ◽  
...  
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Sol Gel Process ◽  
Rare Earth Doped

Preparation and characterization of luminescent thin films doped with rare earth (Tb3+, Eu3+) complexes derived from a sol–gel process

2000 ◽  
Vol 45 (3-4) ◽  
pp. 213-216 ◽  
Author(s):  
Qingguo Meng ◽  
Hongjie Zhang ◽  
Shubin Wang ◽  
Lianshe Fu ◽  
Youxuan Zheng ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Sol Gel ◽  
Sol Gel Process

Luminescence Behavior of Organo-Ruthenium Complexes Entrapped Within Sol-Gel Hosts

1993 ◽  
Vol 329 ◽  
Author(s):  
Lowell R. Matthews ◽  
Xiao-Jun Wang ◽  
E. T. Knobbe
Keyword(s):  
Ruthenium Complex ◽  
Sol Gel ◽  
Emission Spectra ◽  
Visible Spectrum ◽  
Europium Complex ◽  
Matrix Composition ◽  
Strong Fluorescence ◽  
Optical Source ◽  
Luminescence Characteristics ◽  
Luminescence Behavior

AbstractCompounds of europium(III) and ruthenium(II) are of interest for potential optical source applications in the red portion of the visible spectrum. Our previous work showed that the organo-europium complex tris(4,4,4-trifluoro-l-(2′-thienyl)-l,3-butanedionato-O, O′)europium( III), Eu(ttfa)3, demonstrated superior fluorescence properties to salts like europium(III) chloride when doped into sol-gel materials. The ruthenium complex tris(2,2′- bipyridyl)ruthenium(II) chloride, ‘Ru(bpy)3’Cl2, also shows strong fluorescence when doped into sol-gel materials.Luminescence behavior of the ‘;Ru(bpy)3’Cl2 complex has been investigated as a function of matrix composition using three sol-gel-derived hosts: silica, an acrylate ORMOSIL, and an epoxide ORMOSIL. Luminescence characteristics have also been studied as a function of fluorophore concentration. Fluorescence lifetime, excitation and emission spectra, and quantum efficiency values have been determined.

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